1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QtWidgets>
#include "stardelegate.h"
#include "stareditor.h"
#include "starrating.h"
//! [0]
void StarDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.data().canConvert<StarRating>()) {
StarRating starRating = qvariant_cast<StarRating>(index.data());
if (option.state & QStyle::State_Selected)
painter->fillRect(option.rect, option.palette.highlight());
starRating.paint(painter, option.rect, option.palette,
StarRating::EditMode::ReadOnly);
} else {
QStyledItemDelegate::paint(painter, option, index);
}
//! [0]
}
//! [1]
QSize StarDelegate::sizeHint(const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.data().canConvert<StarRating>()) {
StarRating starRating = qvariant_cast<StarRating>(index.data());
return starRating.sizeHint();
}
return QStyledItemDelegate::sizeHint(option, index);
}
//! [1]
//! [2]
QWidget *StarDelegate::createEditor(QWidget *parent,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
if (index.data().canConvert<StarRating>()) {
StarEditor *editor = new StarEditor(parent);
connect(editor, &StarEditor::editingFinished,
this, &StarDelegate::commitAndCloseEditor);
return editor;
}
return QStyledItemDelegate::createEditor(parent, option, index);
}
//! [2]
//! [3]
void StarDelegate::setEditorData(QWidget *editor,
const QModelIndex &index) const
{
if (index.data().canConvert<StarRating>()) {
StarRating starRating = qvariant_cast<StarRating>(index.data());
StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
starEditor->setStarRating(starRating);
} else {
QStyledItemDelegate::setEditorData(editor, index);
}
}
//! [3]
//! [4]
void StarDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
const QModelIndex &index) const
{
if (index.data().canConvert<StarRating>()) {
StarEditor *starEditor = qobject_cast<StarEditor *>(editor);
model->setData(index, QVariant::fromValue(starEditor->starRating()));
} else {
QStyledItemDelegate::setModelData(editor, model, index);
}
}
//! [4]
//! [5]
void StarDelegate::commitAndCloseEditor()
{
StarEditor *editor = qobject_cast<StarEditor *>(sender());
emit commitData(editor);
emit closeEditor(editor);
}
//! [5]
|
